The Summarit 5cm F1.5 is the evolution of the 5cm F1.5 Xenon- all Summarits are coated; the lens mount construction is "different", somewhat easier to work on; The aperture is round rather than a Hexagon, and the lens is optimized for F2.8. Summarits are prone to build up of Haze on the surface behind the aperture.
A few years ago I took apart my Summarit-M and changed the optimization for use wide-open. The Summarit is "bizarre" in that the focal length is closer to 51.1mm. By optimizing it for F2.8 for use close-up, infinity focus is good at F1.5. On the Summarit-M, I chose to increase the distance between the front and rear groups to optimize for F1.5 and simultaneously increasing the focal length by adding a 0.2mm shim as a stand-off for the rear section of the lens.
Looked at the LTM Summarit, which had been CLA'd almost 15 years ago. Time to clean out the haze, it was not quite Wax paper- but like a soft-focus filter.
With the Summarit: you need to take out three set screws that hold the optics barrel from rotating in the mount, and unscrew an access cover. You need to insert a screw driver to hold the rotating collar of the mount in place, then unscrew the optics barrel.
Pictures Please!
access_port_Setscrews_out by fiftyonepointsix, on Flickr
(From the Summarit-M breakdown)
Module out,
Hold_in_Place_Unscrew_Module by fiftyonepointsix, on Flickr
Main Optics module out, open aperture all the way up to F1.5, grab the rear using a rubber grip, unscrew the front section.
Front_Section by fiftyonepointsix, on Flickr
A few years ago I took apart my Summarit-M and changed the optimization for use wide-open. The Summarit is "bizarre" in that the focal length is closer to 51.1mm. By optimizing it for F2.8 for use close-up, infinity focus is good at F1.5. On the Summarit-M, I chose to increase the distance between the front and rear groups to optimize for F1.5 and simultaneously increasing the focal length by adding a 0.2mm shim as a stand-off for the rear section of the lens.
Looked at the LTM Summarit, which had been CLA'd almost 15 years ago. Time to clean out the haze, it was not quite Wax paper- but like a soft-focus filter.
With the Summarit: you need to take out three set screws that hold the optics barrel from rotating in the mount, and unscrew an access cover. You need to insert a screw driver to hold the rotating collar of the mount in place, then unscrew the optics barrel.
Pictures Please!
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(From the Summarit-M breakdown)
Module out,
Join to see EXIF info for this image (if available)
Main Optics module out, open aperture all the way up to F1.5, grab the rear using a rubber grip, unscrew the front section.
Join to see EXIF info for this image (if available)